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3M AC-250 A-1/6 Aerospace Sealant

Category	Polymer , Thermoset
Manufacturer	3M
Trade Name
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	3M AC-250 A-1/6 Aerospace Sealant.pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

3M Aerospace Sealant AC-250 A-1/6 is a two-part, low temperature curing polysulfide, quick repair sealant for integral fuel tank and fuselage sealing applications. The mixed compound is a pourable liquid which can be applied with a spatula, extrusion gun, roller, or brush. It will cure to a fuel-resistant rubber at temperatures above -6.7°C.Information provided by 3M

Physical Properties	Metric	English	Comments
Density	1.61 g/cc	0.0582 lb/in³	AMS-S83318
Volatiles	<= 11 %	<= 11 %
Brookfield Viscosity	100000 - 400000 cP	100000 - 400000 cP	Base, RVF #6 sp @ 2 rpm

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	40	40	Hydrolytic Stability; AMS-S83318
	55	55	AMS-S83318
Tensile Strength at Break	1.52 MPa @Temperature 60.0 °C, Time 1.21e+6 sec	220 psi @Temperature 140 °F, Time 336 hour	JRF; AMS-S83318
	2.14 MPa @Temperature 121 °C, Time 605000 sec	310 psi @Temperature 250 °F, Time 168 hour	JRF; AMS-S83318
	2.07 MPa @Time 1.21e+6 sec	300 psi @Time 336 hour	Standard Cure; AMS-S83318
Elongation at Break	180 % @Temperature 121 °C, Time 605000 sec	180 % @Temperature 250 °F, Time 168 hour	JRF; AMS-S83318
	225 % @Temperature 60.0 °C, Time 1.21e+6 sec	225 % @Temperature 140 °F, Time 336 hour	JRF; AMS-S83318
	220 % @Time 1.21e+6 sec	220 % @Time 336 hour	Standard Cure; AMS-S83318
Peel Strength	3.68 kN/m @Temperature 60.0 °C, Time 605000 sec	21.0 pli @Temperature 140 °F, Time 168 hour	JRF, Stainless Steel; AMS-S83318
	3.68 kN/m @Temperature 60.0 °C, Time 605000 sec	21.0 pli @Temperature 140 °F, Time 168 hour	JRF/SW, Alodine; AMS-S83318
	4.21 kN/m @Temperature 60.0 °C, Time 605000 sec	24.0 pli @Temperature 140 °F, Time 168 hour	JRF/SW, MIL-C-27725; AMS-S83318
	4.21 kN/m @Temperature 60.0 °C, Time 605000 sec	24.0 pli @Temperature 140 °F, Time 168 hour	JRF/SW, Alclad; AMS-S83318
	4.38 kN/m @Temperature 60.0 °C, Time 605000 sec	25.0 pli @Temperature 140 °F, Time 168 hour	JRF, MIL-C-27725; AMS-S83318
	4.38 kN/m @Temperature 60.0 °C, Time 605000 sec	25.0 pli @Temperature 140 °F, Time 168 hour	JRF, Alclad; AMS-S83318
	4.38 kN/m @Temperature 60.0 °C, Time 605000 sec	25.0 pli @Temperature 140 °F, Time 168 hour	JRF, Titanium; AMS-S83318
	4.56 kN/m @Temperature 60.0 °C, Time 605000 sec	26.0 pli @Temperature 140 °F, Time 168 hour	JRF/SW, Stainless Steel; AMS-S83318
	4.56 kN/m @Temperature 60.0 °C, Time 605000 sec	26.0 pli @Temperature 140 °F, Time 168 hour	JRF, Alodine; AMS-S83318
	4.73 kN/m @Temperature 60.0 °C, Time 605000 sec	27.0 pli @Temperature 140 °F, Time 168 hour	JRF/SW, Titanium; AMS-S83318

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	121 °C	250 °F	AMS-S83318
Minimum Service Temperature, Air	-54.0 °C	-65.2 °F	AMS-S83318

Processing Properties	Metric	English	Comments
Cure Time	70.2 min @Temperature 25.0 °C	1.17 hour @Temperature 77.0 °F	Tack-Free Time
	120 min @Temperature 25.0 °C	2.00 hour @Temperature 77.0 °F
	420 min @Temperature 4.40 °C	7.00 hour @Temperature 39.9 °F	Tack-Free Time
	480 min @Temperature 4.40 °C	8.00 hour @Temperature 39.9 °F
	720 min @Temperature -6.70 °C	12.0 hour @Temperature 19.9 °F	Tack-Free Time
	840 min @Temperature -6.70 °C	14.0 hour @Temperature 19.9 °F
Shelf Life	6.00 Month @Temperature <=26.7 °C	6.00 Month @Temperature <=80.1 °F

Descriptive Properties	Value	Comments
Alkalinity	13
Appearance	Dark Brown	Accelerator
	Gray
	White	Base

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